The Pigpen Cipher shown here on Wikipedia, is of course a simple substitution cipher and would explain the use of the Zodiac's liking for the rotated V symbol present throughout the 340 Cipher, as well as the variants he used such as the capital i with the dot on the left, the squares, circles and triangles etc, but as everybody knows the 340 cipher is far from simple, if indeed it is a genuine cipher in its entirety. But the Pigpen Cipher can be adapted and does not have to be rigid, it is possible to place the letters in any form of arrangement of your design and after each cipher symbol or letter is decoded the whole arrangement can be rotated, reversed or basically altered in any way the designer chooses. In this way the same letter or symbol in the code can produce a result of all 26 letters and unless you can find the key it is a near impossible task.The Zodiac may have disguised the key somewhere in his many cards and letters, possibly indicating something with his photocopied keys in the Eureka Card for example, but the search goes on into its 44th year.

On the right is an example he may have created, but this just shows how HER> at the start of the 340 code, deciphered to THIS ( is the Zodiac speaking ). My key is Below, Below, -9, S, The first letter H in the cipher is treated by my first key BELOW, which in my design is T.The second letter E is treated by my second key BELOW, which is H.Then the third letter R is taken back 9 positions on my grid to the letter I.The fourth symbol > is the enclosed S to the right.But of course there could be any number of keys and each or all grids could be rotated 90 degrees or more after each

decrypt. Plus the numbers allocated to each letter could shift by any amount each time or at predetermined times.The possibilities are infinite, but realistically the Zodiac must have known that an impossible cipher is pointless, so if it were genuine, a key would be attainable and it could be resting harmlessly somewhere within the letters or cards, it is just knowing where to look.PIGPEN CIPHER TOOLMASONIC SYMBOLS VIDEO at 18 minutes into videoFBI CODE ANALYSIS

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Richard

6/3/2016 02:14:43 pm

I am ok for now, and being retired now have plenty of free time. I will place a link to your site in the links page and place a banner there too in the coming days. Richard.

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This site is constructed and authored by Richard Grinell from Coventry, England.

All four confirmed attacks by the Zodiac Killer fell on the first day of the week on the 13 Moon Calendar, but that was only the beginning.

Why did the murderer of Paul Stine take the ignition keys from the car and his wallet. Here we will examine one possibility.

Further analysis of the Pines Card and its relationship to the 13 Symbol Cipher, Button Letter code and 13 Hole Postcard. Also, was this card integral to the Donna Lass disappearance on September 6th 1970.

Using blood pattern analysis and distribution to explain the story as it unfolded from the moment the killer requisitioned the taxicab in the theater district of San Francisco to the last possible sighting of the murderer.

Examining the most likely hot spot, the Zodiac Killer returned to after his murderous acts of evil, to narrow down a location to the small town of Benicia, a low crime rate, middle class community, with a population of roughly 5,000 in 1968/69.

Experimenting with the idea that a silencer was used in the commission of the Blue Rock Springs attack and furthermore a silencer or modified compressor was either used or carried during all four attacks of the Zodiac Killer.

On a cold, dark night back on December 20th 1968, a young couple were enjoying a late night out, parked up in their Rambler, on a lonely gravel turnout, just off the unlit, narrow winding road of Lake Herman, when an unknown assailant shattered the tranquil night time air, gunning down both David Faraday and Betty Lou Jensen in cold blood and unleashing an unparalleled horror on a community, the like of which had never been seen before.

Examining the logical exit routes, away from each of the murder sites, using the premise that the Zodiac Killer would immediately head for a secure or safe location after each crime, usually home.

Analyzing the aftermath of the Lake Berryessa attack on Bryan Hartnell and Cecelia Shepard, including the handwriting on the car door.

The Button and Little List letters were as intertwined as could possibly be. The story began with his choice of Mount Diablo as the focus and continued with his selection of the Phillips 66 Road Map itself.

An in depth analysis of the Pines Card sent to the San Francisco Chronicle on March 22nd 1971 and its possible links to the 13 Symbol Cipher.

In depth analysis of the unusual symbol on the envelope of the Halloween Card.

Searching within the Halloween Card for a cryptic message, linking this card with the callous murder of Paul Stine in Presidio Heights on October 11th 1969.

The possibility the Zodiac Killer murders were date specific. 12 Murders and one disappearance all falling on the first day of the 13 Moon Calendar within a 23 month period.

Subtle links between the novel 'To Kill a Mockingbird ' and the Halloween Card/Eureka Card.

The aftermath of Presidio Heights, examining the possible movements of the Zodiac Killer in the moments after the callous execution of Paul Stine on October 11th 1969.

Using simple mathematics to forge symmetry within the 13 Symbol Cipher, sent to the San Francisco Chronicle on April 20th 1970.

Finding pi within the Halloween Card.

A possible key within the 340 Cipher using the moniker Zodiac and continuing this link through to the 13 Symbol Cipher five months later.

Exploring the possible events post Blue Rock Springs and a plausible location area of the killers residence.

The murder of Shannon Olson on Halloween, three days after the mailing of this letter.

Revealing the name Kane in the 13 Symbol Cipher using two individual techniques, yet arriving at the same destination.

An examination of dates, pi and Richard Gaikowski, using the 13 Moon Calendar as a template.

A further extension of the 13 Moon Calendar theory and why the Little List Letter mailed to the San Francisco Chronicle on July 26th 1970 was integral to the killers plans.

On November 26th 1960, Beverly Allan (19) and Larry Peyton (19) were teenagers who had driven to a lovers lane retreat in Forest Park, Portland Hills to enjoy themselves, when their lives were cruelly snatched away.

Attacks bearing the hallmarks of the Modesto abduction of Kathleen Johns on March 22nd 1970.

Linking the symbols on the sixth line of the 340 Cipher to the Exorcist Letter over four years later.

In this article, an interesting find on the Zodiac Killer Site forum has been integrated into the possibility the Zodiac Killer was driven by astrology, religion and in part, by coding and mathematics and take The Wheel of Death to its ancestral roots in The Wheel of Fortune or Rota Fortunae.

A look at Idyllwild, situated in the San Jacinto Mountains in Riverside County, California, a scenic backdrop, flanked by the nearby communities of Pine Cove and Fern Valley.